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Cloudflare Tunnel vs NATMap: catalog facts
Cloudflare Tunnel	NATMap
Freemium cloudflared is free and open source, and Cloudflare Tunnel is available on Cloudflare's…	Free Free and open source under the MIT licence.
Windows, macOS, Linux, Command line	Windows, Linux, Command line
No inbound ports opened; the daemon connects outbound to Cloudflare Works behind carrier-grade NAT where port forwarding is impossible	Exposes internal TCP and UDP services without a relay server Bind mode keeps traffic out of the program
Requires a Cloudflare account and a domain on Cloudflare Your traffic passes through Cloudflare, which is a dependency and a trust decision	Only works when every NAT layer is full cone No published release binaries in the repository
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License: MIT
Account needed	No account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.